CN202721637U - Suspension force control device of energy-saving permanent magnet suspension system - Google Patents
Suspension force control device of energy-saving permanent magnet suspension system Download PDFInfo
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- CN202721637U CN202721637U CN 201220423883 CN201220423883U CN202721637U CN 202721637 U CN202721637 U CN 202721637U CN 201220423883 CN201220423883 CN 201220423883 CN 201220423883 U CN201220423883 U CN 201220423883U CN 202721637 U CN202721637 U CN 202721637U
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Abstract
The utility model provides a suspension force control device of an energy-saving permanent magnet suspension system. The suspension force control device is characterized in that the device comprises a radial magnetized disk permanent magnet, a rotation motor driving the permanent magnet to rotate on the back of the permanent magnet, two F-shaped iron yokes made of a soft magnetic material, and a suspended object. Arc openings of the two F-shaped iron yokes are inward and symmetrically arranged facing each other. The disk permanent magnet is disposed in the center of the arc openings between the two iron yokes, and air gap is reserved between the iron yokes and the permanent magnet. The suspended object suspends below the two F-shaped iron yokes. The suspension force control device of the energy-saving permanent magnet suspension system can generate zero suspension force in the permanent magnet suspension system, realize energy-saving suspension of heavy suspension objects under low driving force, and can flexibly change magnetic pole polarity of a whole suspension device. The suspension force control device effectively makes up disadvantages of an existing maglev system, and expands application condition and scope of the permanent magnet suspension system.
Description
Technical field
The utility model belongs to the permanent magnetic suspension technology field, relates to particularly a kind of suspending power control device of the energy-saving permanent magnet suspension system that is become with a pair of iron yoke piece by the dish type permanent magnet.
Background technology
Magnetic levitation technology has been widely used in the every field of society.Most of magnetic suspension system of using is take the electromagnetic suspension system of solenoid as the magnetic force generating source.But in the electromagnetic suspension system, the size of solenoid is subject to the restriction of energy product ratio, is difficult to realize design, the application of miniature or midget plant.In addition, the energy loss of electromagnetic suspension system is except fraction produces effective magnetic force, and most of energy consumption is in heating.The generation of amount of heat makes the effective energy utilance of electromagnetic suspension system very low, and is not suitable for some to the application scenario of requirement is arranged for temperature.
Along with the appearance of rare earth permanent-magnetic material, the permanent magnet suspension system take permanent magnet as magnetic source has remedied the deficiency of electromagnetic suspension system to a certain extent.But permanent magnet suspension system can't be realized floating process to levitation position from absorption position, in case the unexpected absorption of suspension system has just become uncontrollable system, can't initiatively return suspended state.Reason is that permanent magnet suspension system can't realize that enough little suspending power makes system rely on gravity falling back to suspended state, i.e. zero suspending power function.In addition, permanent magnet suspension system can't change the pole polarity of system flexibly, and it is limited in the application of magnetic suspension bearing and multiple freedom degree magnetic levitation system as combination drive.
Summary of the invention
The utility model purpose: the purpose of this utility model is the problems referred to above for existing electromagnetic suspension and permanent magnet suspension system existence, the suspending power control device of the energy-saving permanent magnet suspension system of a kind of pole polarity that realizes zero suspending power, free conversion suspension system that proposes, the permanent magnet suspension system of using this suspending power control device can address the above problem, and effectively remedies the deficiency of existing magnetic suspension system.
Technical scheme: the utility model is achieved through the following technical solutions:
A kind of suspending power control device of energy-saving permanent magnet suspension system is characterized in that: this device comprises the dish type permanent magnet of diametrical magnetization, drives the turning motor of rotary type permanent-magnet, iron yoke and the suspended matter of two " F " shape soft magnetic materials at the permanent magnet back side; The circular arc opening of two " F " shape iron yokes inwardly is symmetrical arranged in opposite directions, the dish type permanent magnet be arranged on two circular arc openings between the iron yoke the center and and the iron yoke between keep air gap; Suspended matter is suspended in the below of two " F " shape iron yokes.
The dish type permanent magnet can be around the rotation of two iron yoke center of arc under the driving of turning motor, and the suspending power size between iron yoke and the suspended matter is by the controlling angle of dish type permanent magnet, and turning motor and two iron yoke relative positions are fixed and are fixed on the same frame foundation; Turning motor only drives rotary type permanent-magnet, not support suspension thing weight.
The dish type permanent magnet is the permanent magnet of NdFeB material, and this dish type permanent magnet is half-and-half magnetization on diametric(al), and half is the N utmost point, and half is the S utmost point.
Turning motor is direct current or the AC servo motor of being furnished with rotary encoder and harmonic speed reducer.
F " top of shape iron yoke is the opening of circular arc, and the bottom is foot, and the arc radius of the circular arc opening on iron yoke top is of a size of dish type permanent magnet radius and adds gas length, the thickness of iron yoke and dish type magnet uniform thickness between upper yoke and the dish type permanent magnet.
The length of iron yoke lower elongate foot is 50-80mm.
The dish type permanent magnet is not less than 360 degree around the angle of two iron yoke center of arc rotation, and the pole polarity that two iron yokes show can the phase co-conversion.
Gas length between dish type permanent magnet and the two iron yokes is 0.5-4mm.
Gas length between dish type permanent magnet and the two iron yokes is 1-2mm.
The material of two iron yokes and suspended matter is soft magnetic material silicon steel or the permalloy of low magnetic resistance.
Advantage and effect:
The utility model provides a kind of suspending power control device of energy-saving permanent magnet suspension system, this device comprises the dish type permanent magnet of diametrical magnetization, drives the turning motor of rotary type permanent-magnet, iron yoke and the suspended matter of two " F " shape soft magnetic materials at the permanent magnet back side, the circular arc opening of two " F " shape iron yokes inwardly is symmetrical arranged in opposite directions, dish type permanent magnet (1) be arranged on two circular arc openings between the iron yoke the center and and the iron yoke between keep air gap; Suspended matter (4) is suspended in the below of two " F " shape iron yokes.
The utility model is simple in structure, compact, the suspending power control device of energy-saving permanent magnet suspension system adopts the dish type permanent magnet as magnetic source, utilize the permeability of soft magnetic material much larger than the characteristic of the permeability of air, pass through the magnetic flux of the magnetic loop of suspended matter in the control system, reach the purpose of control system suspending power.For reducing the leakage field in the suspending power control device, improve the control characteristic of device, soft magnetic material should be selected the permalloy that the low-intensity magnetic field permeability is high, reluctancy is little, saturation induction density is high (iron-nickel alloy) class material.The utility model is the pole polarity of transformation system freely; Under the condition of not considering the leakage field in the device, can realize zero suspending power function; Electromagnetic suspension system under the comparable equal conditions is saved energy consumption 70%, realizes energy-saving suspended.
Description of drawings:
Fig. 1 is suspending power control device structure and the magnetic line of force schematic diagram of energy-saving permanent magnet suspension system of the present utility model.
Among the figure: 1, magnetized dish type permanent magnet half-and-half radially; 2, left side soft magnetic material iron yoke; 3, right side soft magnetic material iron yoke; 4, soft magnetic material suspended matter; Curve with arrow represents the magnetic line of force, and arrow represents the positive direction that the magnetic line of force is extremely flowed to S by the N utmost point.
Embodiment:Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, the utility model provides a kind of suspending power control device of energy-saving permanent magnet suspension system, and this device comprises the dish type permanent magnet 1 of diametrical magnetization, drives the turning motor of rotary type permanent-magnet, iron yoke and the suspended matter 4 of two " F " shape soft magnetic materials at the permanent magnet back side; The iron yoke is divided into left side soft magnetic material iron yoke 2 and right side soft magnetic material iron yoke 3;
The circular arc opening of two " F " shape iron yokes inwardly is symmetrical arranged in opposite directions, dish type permanent magnet 1 be arranged on two circular arc openings between the iron yoke the center and and the iron yoke between keep air gap; Suspended matter 4 is suspended in the below of two " F " shape iron yokes.
Dish type permanent magnet 1 can be around the rotation of two iron yoke center of arc under the driving of turning motor, and the suspending power size between iron yoke and the suspended matter is by the controlling angle of dish type permanent magnet 1, and turning motor and two iron yoke relative positions are fixed and are fixed on the same frame foundation; Turning motor only drives rotary type permanent-magnet, not support suspension thing weight.
Dish type permanent magnet 1 is the permanent magnet of NdFeB material, and this dish type permanent magnet 1 is half-and-half magnetization on diametric(al), and half is the N utmost point, and half is the S utmost point.Dish type permanent magnet 1 diameter and gauge are determined according to physical dimension and the required magnetic energy product of permanent-magnet suspender
Turning motor: direct current or AC servo motor, need be furnished with the rotary encoder of measuring as coaxial angular, can be furnished with the harmonic speed reducer without the reverse drive gap of suitable speed reducing ratio.Turning motor is connected and fixed by plate-like flange and dish type permanent magnet, and plate-like flange and permanent magnet are fixed by sunk screw or commercially available high-strength adhesive, and this is mature technology, and description of drawings no longer is provided.Turning motor can be done rotation more than 360 degree around its axis by disc-shaped magnet, and carries out the control of accurate angle of revolution.
F " top of shape iron yoke is the opening of circular arc, and the bottom is foot, and the arc radius of the circular arc opening on iron yoke top is of a size of dish type permanent magnet radius and adds gas length, the thickness of iron yoke and dish type magnet uniform thickness between upper yoke and the dish type permanent magnet.Specifically, the material of " F " font iron yoke is the soft magnetic material that the low-intensity magnetic field permeability is high, reluctancy is little, saturation induction density is high, and for example: permalloy or high-quality silicon steel sheet, its quantity are a pair of, and are arranged symmetrically with respect to the dish type permanent magnet.The arc size on iron yoke top is that dish type permanent magnet radius adds the gas length between upper yoke and the magnet, the thickness of iron yoke and dish type magnet uniform thickness.The length of iron yoke lower elongate foot is longer, and the leakage field of device is less to the zero suspending power properties influence of device, but the suspending power of the slender foot end generation of equal conditions lower yoke is diminished, and the length of best elongated foot is 50-80mm.All the other sizes of iron yoke can be determined by the concrete structure of permanent-magnet suspender.
Dish type permanent magnet 1 is not less than 360 degree around the angle of two iron yoke center of arc rotation, and the pole polarity that two iron yokes show can the phase co-conversion.
Gas length between dish type permanent magnet and the two iron yokes is 0.5-4mm.Gas length between dish type permanent magnet and the two iron yokes is 1-2mm.The material of two iron yokes and suspended matter is soft magnetic material silicon steel or the permalloy of low magnetic resistance.
Suspended matter: material is the soft magnetic material that the low-intensity magnetic field permeability is high, reluctancy is little, saturation induction density is high, for example: permalloy or high-quality silicon steel sheet.It is shaped as strip, and length is not shorter than the two iron yokes outside relative length, thickness and dish type magnet uniform thickness.
The utility model utilizes the permeability of soft magnetic material much larger than the characteristic of the permeability of air, passes through the magnetic flux of the magnetic loop of suspended matter in the control system, reaches the purpose of control system suspending power.When N, the S utmost point of dish type permanent magnet 1 is in straight up and down position, definition dish type magnet this moment is in 0 degree position, the magnetic line of force that sends from the N utmost point of dish type permanent magnet 1 returns respectively the S utmost point of magnet with the shortest route through the iron yoke of both sides, at this moment without the magnetic line of force suspended matter 4 of flowing through, therefore between iron yoke end and suspended matter, produce without suspending power, namely realized zero suspending power.
When dish type permanent magnet 1 leaves 0 degree position, for example during as shown in Figure 1 position, the N pole-face of dish type permanent magnet 1 to the right iron yoke area becomes large, and the S pole-face of the magnet to the right area of iron yoke diminishes, and left side iron yoke situation is opposite with right side iron yoke.At this moment, the magnetic line of force that sends from the N utmost point of dish type permanent magnet 1 is divided into three parts, flows back to the S utmost point of dish type permanent magnet 1 by three loops.
Part one: towards left side iron yoke, the loop of the iron yoke on the left of the magnetic line of force that the dish type permanent magnet N utmost point sends is flowed through is directly returned towards the S utmost point of the dish type permanent magnet of left side iron yoke.
Part two: the flow through loop of iron yoke on right side of a magnetic line of force part of sending towards the dish type permanent magnet N utmost point of right side iron yoke is directly returned towards the S utmost point of the dish type permanent magnet on right side.
Part three: another part of the magnetic line of force that sends towards the dish type permanent magnet N utmost point of right side iron yoke flow through right side iron yoke, suspended matter, left side iron yoke finally turn back to towards the S utmost point of the dish type permanent magnet of left side iron yoke.
The magnetic line of force of part three has produced the suspending power between iron yoke end and the suspended matter.The corner of adjusting dish type magnet by turning motor has just been controlled the suspending power between iron yoke end and the suspended matter.
Two iron yokes in the utility model and the stator of turning motor are fixed on the same frame foundation, and the weight of suspended matter is transitioned on the frame foundation by the iron yoke, and motor is support suspension thing weight not, a disc-shaped rotary type permanent-magnet.Therefore the utility model can be realized resuspension thing energy-saving suspended under the little actuating force.
When the dish type permanent magnet forwards 90 to when spending since 0 degree position, the suspending power of device increases gradually, and 90 suspending powers when spending are maximum.Forward 180 to when spending since 90 degree positions, the suspending power of device is reduced to 0,180 second the zero suspension force that occurs device when spending gradually from maximum.But dish type permanent magnet angle surpasses 180 when spending, and the pole polarity of two slender foot ends of iron yoke changes, and 270 produce the maximum suspending power after the reverse when spending.
The suspending power control device of energy-saving permanent magnet suspension system of the present utility model can produce the zero suspending power in the permanent magnet suspension system, realizes resuspension thing energy-saving suspended under the little actuating force, and can change flexibly the pole polarity of whole levitation device.The utility model has effectively remedied the deficiency of existing magnetic suspension system, has enlarged application conditions and the scope of permanent magnet suspension system.
Claims (10)
1. the suspending power control device of an energy-saving permanent magnet suspension system is characterized in that: this device comprises the dish type permanent magnet (1) of diametrical magnetization, drives the turning motor of rotary type permanent-magnet, iron yoke and the suspended matter (4) of two " F " shape soft magnetic materials at the permanent magnet back side; The circular arc opening of two " F " shape iron yokes inwardly is symmetrical arranged in opposite directions, dish type permanent magnet (1) be arranged on two circular arc openings between the iron yoke the center and and the iron yoke between keep air gap; Suspended matter (4) is suspended in the below of two " F " shape iron yokes.
2. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 1, it is characterized in that: dish type permanent magnet (1) can rotate around two iron yoke center of arc under the driving of turning motor, suspending power size between iron yoke and the suspended matter is by the controlling angle of dish type permanent magnet (1), and turning motor and two iron yoke relative positions are fixed and are fixed on the same frame foundation; Turning motor only drives rotary type permanent-magnet, not support suspension thing weight.
3. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 1 and 2, it is characterized in that: dish type permanent magnet (1) is the permanent magnet of NdFeB material, this dish type permanent magnet (1) is half-and-half magnetization on diametric(al), and half is the N utmost point, and half is the S utmost point.
4. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 1 and 2, it is characterized in that: turning motor is direct current or the AC servo motor of being furnished with rotary encoder and harmonic speed reducer.
5. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 1 and 2, it is characterized in that: F " top of shape iron yoke is the opening of circular arc; and the bottom is foot; the arc radius of the circular arc opening on iron yoke top is of a size of dish type permanent magnet radius and adds gas length, the thickness of iron yoke and dish type magnet uniform thickness between upper yoke and the dish type permanent magnet.
6. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 5, it is characterized in that: the length of iron yoke lower elongate foot is 50-80mm.
7. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 1 is characterized in that: dish type permanent magnet (1) is not less than 360 degree around the angle of two iron yoke center of arc rotation, and the pole polarity that two iron yokes show can the phase co-conversion.
8. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 1, it is characterized in that: the gas length between dish type permanent magnet and the two iron yokes is 0.5-4mm.
9. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 8, it is characterized in that: the gas length between dish type permanent magnet and the two iron yokes is 1-2mm.
10. the suspending power control device of a kind of energy-saving permanent magnet suspension system according to claim 1 is characterized in that: the material of two iron yokes and suspended matter is soft magnetic material silicon steel or the permalloy of low magnetic resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423883 CN202721637U (en) | 2012-08-24 | 2012-08-24 | Suspension force control device of energy-saving permanent magnet suspension system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423883 CN202721637U (en) | 2012-08-24 | 2012-08-24 | Suspension force control device of energy-saving permanent magnet suspension system |
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| CN202721637U true CN202721637U (en) | 2013-02-06 |
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| CN 201220423883 Expired - Fee Related CN202721637U (en) | 2012-08-24 | 2012-08-24 | Suspension force control device of energy-saving permanent magnet suspension system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801370A (en) * | 2012-08-24 | 2012-11-28 | 沈阳工业大学 | Suspension force control device of energy-saving type permanent magnetic suspension system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801370A (en) * | 2012-08-24 | 2012-11-28 | 沈阳工业大学 | Suspension force control device of energy-saving type permanent magnetic suspension system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20140824 |
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| EXPY | Termination of patent right or utility model |